Proven Landing Page Formula

Does anyone have a specific format you like to follow?

I personally like how Slack sets up their pages. Simple, value-packed, & good-looking.

Our team is updating www.seesnap.com to better communicate just how big of a product it will be.

What do you think?

Are there companies that do it well? Post it below!
Is there a formula or strategy that you like? Post it below!